배달효성 | "H" HyoSung Bidol-Lee hyosung11

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	git_current_branch () {
	local ref
	ref=$(command git symbolic-ref --quiet HEAD 2> /dev/null)
	local ret=$?
	if [[ $ret != 0 ]]
	then
	[[ $ret == 128 ]] && return
	ref=$(command git rev-parse --short HEAD 2> /dev/null) \|\| return
	fi
	echo ${ref#refs/heads/}